Operative Exposure of the Facial Canal: With Removal of a Tumor of the Greater Superficial Petrosal Nerve

Tremble, G. Edward; Penfield, Wilder

doi:10.1001/archotol.1936.00640040583005

Cited by 47 publications

(20 citation statements)

References 2 publications

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“…Contrast-enhanced MR images usually demonstrate homo-to heterogeneous enhancement. Carotid angiography has been advised if tumor is in close proximity or abutting petrous carotid artery [1,2,10,13,20]. In none of our case it deemed necessary.…”

Section: Discussionmentioning

confidence: 82%

Greater Superficial Petrosal Nerve Schwannoma: 3 Case Reports and Review of Literature

Ansari¹,

Menon²,

Abraham³

et al. 2015

TONEUROSJ

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Greater superficial petrosal nerve (GSPN) schwannomas are very rare tumors. There are only 15 reports, described so far. In this study the authors discuss the clinical presentation, radiological features, surgical approach, postoperative outcome and follow up of 3 cases of this rare schwannoma of the middle fossa, possibly originating from GSPN together with the review of existing literature. The presenting features were facial paresis in all cases, xerophthalmia in case 1, and tinnitus in case 2. Imaging studies showed a sub-temporal extradural mass on the anterosuperior aspect of the petrous bone in all cases. All tumors were removed through a subtemporal extradural microsurgical approach. Improvement of facial weakness and xerophthalmia as an end result is characteristic post-operative finding.

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Section: Discussionmentioning

confidence: 82%

Greater Superficial Petrosal Nerve Schwannoma: 3 Case Reports and Review of Literature

Ansari¹,

Menon²,

Abraham³

et al. 2015

TONEUROSJ

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“…From the geniculate ganglion, a facial nerve schwannoma may extend to involve the tympanic and/or labyrinthine portions of the facial nerve (1,(4)(5)(6). Uncommonly, facial nerve schwannomas extend to involve the middle cranial fossa by means of direct upward spread through the roof of the temporal bone or anterior spread through the facial hiatus for the greater superficial petrosal nerve (2,3,(5)(6)(7)(8)(9).…”

Section: Discussionmentioning

confidence: 99%

“…The clinical presentation of facial nerve schwannoma is variable and depends on the site of tumor involvement, but some component of facial paresis is expected (1)(2)(3)(4)(5)(6)(7)(8)(9)(10). This facial paresis is of variable severity but is often gradually progressive or fluctuating in nature (3,4,9,10).…”

Section: Discussionmentioning

confidence: 99%

“…Conductive hearing loss due to tympanic segment involvement and ossicular compression is the second most common presenting symptom and may be seen in up to 76% of cases (1). Other less common presenting symptoms include tinnitus, hemifacial spasm, and otalgia (1)(2)(3)(4)(5)(6)8,9). Involvement of the greater superficial petrosal nerve can result in loss of lacrimation (10,11).…”

Section: Discussionmentioning

confidence: 99%

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Case 16: Facial Nerve Schwannoma with Middle Cranial Fossa Involvement

Ginsberg

DeMonte²

1999

Radiology

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A 26-year-old man presented with a 6-8-month history of progressive right-sided facial weakness. This was preceded by dryness of the right eye. The patient also reported a sensation of fullness or fluid within his right ear, and he subsequently experienced decreased hearing in that ear.At physical examination, facial sensation and visual acuity were normal. There was a House grade III right-sided facial paresis. Audiometry revealed right-sided conductive hearing loss. The lower cranial nerves were intact, and other neurologic test results were unremarkable.Magnetic resonance (MR) imaging (Fig 1) and computed tomography (CT) (Fig 2) were performed. IMAGING FINDINGSAt MR imaging with a 1.5-T imager, there was an extraaxial right middle cranial fossa mass that was nearly isointense to brain on T1-weighted images, with a more hypointense cystic component centrally (Fig 1a). The lesion was mildly hyperintense relative to brain on T2-weighted images (the cyst is hyperintense) (Fig 1b), and it enhanced brightly following intravenous administration of 0.

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“…4,9± 17 N eurinom as arising from the greater petrosal nerve and from the geniculate ganglion are extrem ely rare. 16 Most neurinom as of the facial nerve are located in the extracranial segm ent of the nerve or in its term inal branches and have been discussed in non-neurosurgical literature. 14± 19 T he V II nerve neurinom as m ay also occur in com bination w ith other tum ours.…”

Section: Introductionmentioning

confidence: 99%